Power Error; No Power - LG 55UK6500AUA Service Manual

Standard Repair Process
Error
symptom
☞A17
Check Power LED
LED On?
. Stand-By: Red or Turn On
N
. Operating: Turn Off
Check Power cord
was inserted properly
Normal?
Y
Close
B. Power error

No power

DC Power on
Y
by pressing Power Key
On Remote control
N
Check ST-BY 3.5V
☞A18
Established
Revised date
Normal
operation?
Y
Measure voltage of each output of Power B/D
Y
Normal
voltage?
Normal
Y
voltage? N
Replace Power B/D
N
Replace Power
B/D
6
date
☞A18
N
Check Power
OK?
On '"High"
Replace Main B/D
☞A18
Y
Replace Main B/D
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6/16
Replace
Y
Power
B/D